in Aapuvaara, Karhuvaara (Bear Mountain), Laulumaa (The Singing Land) and Paljukka (The Bare Mountain). The streams excavate gravel pits for grayling and trout to spawn, meander slowly past hickory bogs and trandans, bordered by lichen-adorned mixed forests, and expand into wider seals and reservoirs, where large pike and perch rule and beavers and swans build huts and nests. Some of the streams are ice-free all year round, but in winter the water flows mostly quietly under the sometimes meter-thick ice and the otters have plenty of room to play sliding in the snow. In the spring, the stream attracts rafters when it adventurously and fiercely overflows all overflows, paving the way for summer.